Which of the following compounds does not contribute to permanent hardness of water?
NaCl
MgCl2
CaSO4
MgSO4
Which of the following methods leads to the production of the highest purity of dihydrogen?
Electrolysis of barium hydroxide solution
Reaction of steam on hydrocarbons
Electrolysis of brine solution
Process of coal gasification
The strength of a 20 volume solution of H2O2 is
30.36 g/L
42.40 g/L
60.71 g/L
74.26 g/L
Hydroformylation is a reaction of
Syngas with olefins
Hydrogen with nitrogen
Vegetable oils with hydrogen
Carbon monoxide with hydrogen
Which of the following compounds acts as hydrogen storage hydride?
BeH2
C2H6
PdH
LiH
The pollutant released on using dihydrogen as a fuel is
CO2
CO
NOx
SOx
The Haber process is a reaction of
Dihydrogen with dinitrogen
Hydrocarbons with steam
Metals with acids
Which of the following chemical equations represents the auto-protolysis of water?
C2D2, a deuterium compound, can be prepared by a
Reaction of calcium carbide with deuterium
Reaction of aluminium carbide with deuterium
Reaction of calcium carbide with deuterium oxide
Reaction of aluminium carbide with deuterium oxide
The major product of the reaction between barium peroxide and sulphuric acid is
Oxygen
Hydrogen
Barium oxide
Hydrogen peroxide
